Bike maintenance is essential to keeping your bike working on a daily or weekly basis. Leaving your bike uncared for will lead to mechanical let downs, leaving your bike unreliable. Simple maintenance and checks help to eliminate these kinds of problems and will ensure that your bike is fully functional every time you get it out to ride. Simple checks such a brake block wear. Rim wear, cable stretch, bearings in the wheels and pedals and headset bearing checks are checks you need do regularly. If you are unsure how to check for this, then there are many local bike shops that can service your bike for you.